Latent-Factor Half-Trek Criterion

This repository contains the code used to compute the numerical experiments in Section 6 of the paper

Barber, R. F., Drton, M., Sturma, N., and Weihs L. (2022). Half-Trek Criterion for Identifiability of Latent Variable Models. arXiv.

The code is written in R and SageMath and the repository is structured as follows:

• R: Code to generate all isomorphic classes of DAGs of experimental setups 1 and 2 and to check the latent-factor half-trek criterion on all of these graphs using the package SEMID.
• SageMath: Code to check identifiability by algeraic techniques as described in Appendix C of the paper.
• experiments: The results of the experiments.